Display screen or portion thereof with computer icon



FIG. 1 is a front view of a first embodiment of a display screen or portion thereof with computer icon in accordance with our new design; and,

FIG. 2 is a front view of a second embodiment of a display screen or portion thereof with computer icon in accordance with our new design.

The outermost broken line rectangles illustrate the display screen or portion thereof and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with computer icon, as shown and described. 